What's the highest temperature in the greenhouse?

That depends on what crops are planted in your shed. Generally, the daytime temperature of crops is 32 degrees, and the lowest temperature at night is 12 degrees. In special weather, the temperature can be reduced for a short time. The upper limit of high temperature can reach 55 degrees in a short time, and the temperature range of greenhouse can be divided into upper and lower limits during planting crops and during non-planting crops.

Generally speaking, when planting crops, the temperature in the greenhouse should be controlled above the lowest average temperature 12 degrees (so as not to damage the growth of roots), and the highest average limit of crop growth points should be below 34 degrees (so as not to damage the growth points).

If there is no crop low temperature according to the ambient temperature, the maximum temperature should not exceed 50 degrees. If it exceeds 50 degrees, the film will age quickly.